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Journal ArticleDOI

Quantum cryptography based on Bell's theorem.

Artur Ekert
- 05 Aug 1991 - 
- Vol. 67, Iss: 6, pp 661-663
TLDR
Practical application of the generalized Bells theorem in the so-called key distribution process in cryptography is reported, based on the Bohms version of the Einstein-Podolsky-Rosen gedanken experiment andBells theorem is used to test for eavesdropping.
Abstract
Practical application of the generalized Bells theorem in the so-called key distribution process in cryptography is reported. The proposed scheme is based on the Bohms version of the Einstein-Podolsky-Rosen gedanken experiment and Bells theorem is used to test for eavesdropping. © 1991 The American Physical Society.

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Journal ArticleDOI

Phase-controlled integrated photonic quantum circuits

TL;DR: A key proof-of-principle demonstration of an externallycontrolled photonic quantum circuit based upon UV-written waveguide technology and non-classical interference of photon pairs in a Mach-Zehnder interferometer constructed with X couplers in an integrated optical circuit.
Book ChapterDOI

Quantum Computation and Information

TL;DR: The problem of minimizing the number of qubits in quantum automata is presented in detail at a level appropriate for non-specialists in order to illustrate some key issues in quantum computation.
Journal ArticleDOI

Experimental entanglement distillation of mesoscopic quantum states

TL;DR: In this paper, the first time such "entanglement distillation" has been achieved for states of light that are entangled in continuous variables, which should help to increase the distance over which quantum information can be distributed.
Journal ArticleDOI

Device-independent entanglement quantification and related applications.

TL;DR: It is shown that the method presented provides a rigorous way to construct dimension witnesses, gives new insights into the question whether bound entangled states can violate a Bell inequality, and can be used to construct device-independent entanglement witnesses involving an arbitrary number of parties.
Journal ArticleDOI

Quantum random networks

TL;DR: In this article, when quantum effects are added, qualitatively different behaviours emerge, even for the simplest cases, even when the network is considered in the context of classical statistical mechanics.